feat: added internal variables

include/builtins.h

@@ -6,7 +6,7 @@
 /*   By: sede-san <sede-san@student.42madrid.com    +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2025/10/29 22:09:51 by sede-san          #+#    #+#             */
-/*   Updated: 2026/02/08 19:42:50 by sede-san         ###   ########.fr       */
+/*   Updated: 2026/02/14 01:15:34 by sede-san         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -16,6 +16,7 @@
 # include "ft_args.h"
 # include "minishell.h"
 # include "core.h"
+# include "variables.h"
 
 typedef uint8_t	(*t_builtin_func)(t_command cmd, t_minishell *minishell);
 

include/core.h

@@ -6,7 +6,7 @@
 /*   By: sede-san <sede-san@student.42madrid.com    +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2025/10/22 19:10:13 by sede-san          #+#    #+#             */
-/*   Updated: 2026/02/13 20:06:08 by sede-san         ###   ########.fr       */
+/*   Updated: 2026/02/14 01:25:43 by sede-san         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -63,15 +63,9 @@ typedef struct s_redirection
 typedef struct s_variables
 {
 	t_hashmap	*environment;
-	// char	**internal;
+	t_hashmap	*internal;
 }	t_variables;
 
-typedef struct s_prompt
-{
-	const char	*ps1;	// primary prompt string
-	const char	*ps2;	// secondary prompt string for multiline input
-}	t_prompt;
-
 /**
  * @brief Main minishell structure containing global state information
  *
@@ -84,7 +78,6 @@ typedef struct s_minishell
 {
 	t_variables	variables;
 	t_hashmap	*builtins;
-	t_prompt	prompt;
 	uint8_t		exit_status;
 	bool		exit;
 }	t_minishell;
@@ -149,8 +142,8 @@ extern char		**get_envp(t_minishell *msh);
 
 extern void		free_envp(char **envp);
 
-extern char		*get_env(const char *env_name, t_minishell *msh);
+void	handle_sigint_status(t_minishell *minishell);
+bool	handle_eof(char *line, t_minishell *minishell);
 
-extern void		unset_env(const char *env_name, t_minishell *msh);
 
 #endif /* CORE_H */

include/errors.h

@@ -6,7 +6,7 @@
 /*   By: sede-san <sede-san@student.42madrid.com    +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2026/02/10 22:28:01 by sede-san          #+#    #+#             */
-/*   Updated: 2026/02/10 23:24:16 by sede-san         ###   ########.fr       */
+/*   Updated: 2026/02/14 01:11:38 by sede-san         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -19,5 +19,6 @@
 
 extern void	syntax_error_unexpected_token(t_token *token);
 extern void	malloc_error(void);
+extern void	command_not_found_error(const char *command);
 
 #endif /* ERRORS_H */

include/minishell.h

@@ -6,7 +6,7 @@
 /*   By: sede-san <sede-san@student.42madrid.com    +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2025/10/20 16:35:10 by sede-san          #+#    #+#             */
-/*   Updated: 2026/02/13 20:12:25 by sede-san         ###   ########.fr       */
+/*   Updated: 2026/02/14 01:13:42 by sede-san         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -42,7 +42,4 @@
 # include <term.h>				// tgetent(3), tgetflag(3), tgetnum(3),
 								// tgetstr(3), tgoto(3), tputs(3)
 
-void	handle_sigint_status(t_minishell *minishell);
-bool	handle_eof(char *line, t_minishell *minishell);
-
 #endif /* MINISHELL_H */

include/variables.h

@@ -0,0 +1,43 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   variables.h                                        :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: sede-san <sede-san@student.42madrid.com    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2026/02/13 21:45:35 by sede-san          #+#    #+#             */
+/*   Updated: 2026/02/14 01:24:49 by sede-san         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#ifndef VARIABLES_H
+# define VARIABLES_H
+
+# include "minishell.h" 
+# include "core.h"
+
+// variables.c
+
+extern char *get_var(const char *name, t_minishell *minishell);
+extern void set_var(const char *name, char *value, t_minishell *minishell);
+extern void unset_var(const char *name, t_minishell *minishell);
+
+// environment.c
+
+extern char *get_env(const char *name, t_minishell *minishell);
+extern void set_env(const char *name, char *value, t_minishell *minishell);
+extern void unset_env(const char *name, t_minishell *minishell);
+
+extern void set_envp(char **envp, t_minishell *minishell);
+extern char **get_envp(t_minishell *minishell);
+extern void free_envp(char **envp);
+
+// internal.c
+
+extern char *get_int(const char *name, t_minishell *minishell);
+extern void set_int(const char *name, char *value, t_minishell *minishell);
+extern void unset_int(const char *name, t_minishell *minishell);
+
+extern void set_intp(t_minishell *minishell);
+
+#endif /* VARIABLES_H */

src/executor/command_exec.c

@@ -6,7 +6,7 @@
 /*   By: sede-san <sede-san@student.42madrid.com    +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2026/02/11 00:00:00 by sede-san          #+#    #+#             */
-/*   Updated: 2026/02/11 00:00:00 by sede-san         ###   ########.fr       */
+/*   Updated: 2026/02/14 01:34:37 by sede-san         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -40,9 +40,13 @@ static void	handle_execve_error(
 )
 {
 	uint8_t	exit_status;
+	size_t	i;
 
 	exit_status = resolve_execve_status();
-	free_envp(envp);
+	i = 0;
+	while (envp[i] != NULL)
+		free(envp[i++]);
+	free(envp);
 	perror(command->path);
 	exit(exit_status);
 }

src/executor/path_resolver.c

@@ -6,11 +6,12 @@
 /*   By: sede-san <sede-san@student.42madrid.com    +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2026/02/11 00:00:00 by sede-san          #+#    #+#             */
-/*   Updated: 2026/02/11 00:00:00 by sede-san         ###   ########.fr       */
+/*   Updated: 2026/02/14 01:17:01 by sede-san         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
 #include "executor.h"
+#include "variables.h"
 
 static bool	is_path_explicit(
 	const char *command_name

src/minishell.c

@@ -6,7 +6,7 @@
 /*   By: sede-san <sede-san@student.42madrid.com    +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2025/10/20 20:51:33 by sede-san          #+#    #+#             */
-/*   Updated: 2026/02/13 20:12:07 by sede-san         ###   ########.fr       */
+/*   Updated: 2026/02/14 01:58:39 by sede-san         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -15,22 +15,14 @@
 #include "parser.h"
 #include "executor.h"
 
-static void	set_prompts(
-	t_minishell *minishell
-)
-{
-	minishell->prompt.ps1 = DEFAULT_PS1;
-	minishell->prompt.ps2 = DEFAULT_PS2;
-}
-
 void	minishell_init(
 	t_minishell	*minishell,
 	char		**envp
 ){
 	ft_bzero(minishell, sizeof(t_minishell));
+	set_intp(minishell);
 	set_envp(envp, minishell);
 	set_builtins(minishell);
-	set_prompts(minishell);
 	if (minishell->variables.environment == NULL || minishell->builtins == NULL)
 		minishell_clear(minishell);
 }
@@ -47,7 +39,7 @@ void	minishell_run(
 	while (!minishell->exit)
 	{
 		if (isatty(STDIN_FILENO))
-			line = readline(minishell->prompt.ps1);
+			line = readline(DEFAULT_PS1);
 		else
 			line = get_next_line(STDIN_FILENO);
 		handle_sigint_status(minishell);
@@ -67,6 +59,8 @@ void	minishell_clear(
 	t_minishell	*minishell
 ){
 	rl_clear_history();
+	if (minishell->variables.internal != NULL)
+		ft_hashmap_clear(&minishell->variables.internal, free);
 	if (minishell->variables.environment != NULL)
 		ft_hashmap_clear(&minishell->variables.environment, free);
 	if (minishell->builtins != NULL)

src/parser/parser_expand.c

@@ -6,12 +6,13 @@
 /*   By: sede-san <sede-san@student.42madrid.com    +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2026/02/13 21:24:45 by sede-san          #+#    #+#             */
-/*   Updated: 2026/02/13 21:24:45 by sede-san         ###   ########.fr       */
+/*   Updated: 2026/02/14 01:51:57 by sede-san         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
 #include "parser.h"
 #include "errors.h"
+#include "variables.h"
 
 static char	*replace_value(char *original, char *value, int start, int end);
 static void	expand_variable(char **argument, int *i, t_minishell *minishell);
@@ -46,12 +47,13 @@ static void	expand_variable(
 	int			end;
 
 	end = start;
-	while (ft_isalnum((*argument)[end]) || (*argument)[end] == '_')
+	while (ft_isalnum((*argument)[end]) || (*argument)[end] == '_'
+		|| (*argument)[end] == '?')
 		end++;
 	variable_name = ft_substr(*argument, start, end - start);
 	if (variable_name == NULL)
 		return (minishell->exit = true, malloc_error());
-	variable_value = get_env(variable_name, minishell);
+	variable_value = get_var(variable_name, minishell);
 	free(variable_name);
 	if (variable_value == NULL)
 		variable_value = "";

src/variables/environment/environment.c

@@ -6,65 +6,33 @@
 /*   By: sede-san <sede-san@student.42madrid.com    +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2025/12/01 09:12:39 by sede-san          #+#    #+#             */
-/*   Updated: 2026/02/08 19:44:15 by sede-san         ###   ########.fr       */
+/*   Updated: 2026/02/14 01:32:42 by sede-san         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
 #include "minishell.h"
 #include "core.h"
+#include "variables.h"
+#include "errors.h"
 
 /**
- * @brief Parses and stores environment variables from envp array into a hashmap
+ * @brief Retrieves the value of an environment variable from the shell's
+ *        environment hashmap.
  *
- * This function iterates through the environment variables array (envp) and
+ * This function searches for the specified environment variable name in the
- * splits each variable string on the '=' delimiter to separate the variable
+ * minishell's environment variable hashmap and returns its associated value.
- * name from its value. Each name-value pair is then stored in the minishell's
- * environment hashmap for later retrieval.
  *
- * @param envp Array of environment variable strings in "NAME=value" format
+ * @param name      The name of the environment variable to retrieve.
- * @param msh  Pointer to the minishell structure containing the environment
+ * @param minishell Pointer to the minishell object.
- *             hashmap
  *
- * @note The function assumes envp strings are in the standard format
+ * @return The value of the environment variable if found, NULL if not found
- *       "NAME=value"
  */
-void	set_envp(
+char	*get_env(
-	char **envp,
+	const char *name,
-	t_minishell *msh
+	t_minishell *minishell
-) {
+)
-	char	*equal_sign;
+{
-	char	*key;
+	return (ft_hashmap_get(minishell->variables.environment, name));
-	char	*value;
-
-	if (msh == NULL || envp == NULL)
-		return ;
-	msh->variables.environment
-		= ft_hashmap_new(32, ft_hashmap_hashstr, ft_hashmap_strcmp);
-	if (msh->variables.environment == NULL)
-		return ;
-	while (*envp != NULL)
-	{
-		equal_sign = ft_strchr(*envp, '=');
-		if (equal_sign == NULL)
-		{
-			key = ft_strdup(*envp);
-			value = ft_strdup("");
-		}
-		else
-		{
-			key = ft_substr(*envp, 0, equal_sign - *envp);
-			value = ft_strdup(equal_sign + 1);
-		}
-		if (key == NULL || value == NULL)
-		{
-			free(key);
-			free(value);
-			ft_hashmap_clear(&msh->variables.environment, free);
-			return ;
-		}
-		ft_hashmap_put(msh->variables.environment, key, value);
-		envp++;
-	}
 }
 
 /**
@@ -75,29 +43,72 @@ void	set_envp(
  * the old value is freed to prevent memory leaks. If the variable is new,
  * a duplicate of the key name is created for storage.
  *
- * @param env_name  The name of the environment variable to set
+ * @param name      The name of the environment variable to set
- * @param env_value The value to assign to the environment variable
+ * @param value     The value to assign to the environment variable
- * @param msh       Pointer to the minishell structure containing the
+ * @param minishell Pointer to the minishell object.
- *                  environment hashmap
  */
 void	set_env(
-	const char *env_name,
+	const char *name,
-	char *env_value,
+	char *value,
-	t_minishell *msh
+	t_minishell *minishell
-) {
+)
-	t_hashmap	*environment;
+{
-	const char	*key;
+	t_hashmap		*environment;
-	char		*old_value;
+	char			*key;
+	char			*val;
+	char			*old_value;
 
-	environment = msh->variables.environment;
+	environment = minishell->variables.environment;
-	key = env_name;
+	key = (char *)name;
-	if (!ft_hashmap_contains_key(environment, key))
+	if (key != NULL && !ft_hashmap_contains_key(environment, key))
-		key = ft_strdup(env_name);
+	{
-	old_value = ft_hashmap_put(environment, key, ft_strdup(env_value));
+		key = ft_strdup(name);
+		if (key == NULL)
+		{
+			minishell->exit = true;
+			malloc_error();
+			return ;
+		}
+	}
+	val = value;
+	if (val != NULL)
+		val = ft_strdup(value);
+	if (val == NULL)
+	{
+		if (key != name)
+			free(key);
+		minishell->exit = true;
+		malloc_error();
+		return ;
+	}
+	old_value = ft_hashmap_put(environment, key, val);
 	if (old_value != NULL)
 		free(old_value);
 }
 
+/**
+ * @brief Removes an environment variable by name.
+ * 
+ * @param name      The name of the environment variable to remove.
+ * @param minishell Pointer to the minishell structure.
+ * 
+ * @note If the environment variable exists, it will be removed from the hashmap
+ *       and its associated value will be freed.
+ */
+void	unset_env(
+	const char *name,
+	t_minishell *minishell
+)
+{
+	t_hashmap	*environment;
+	char		*val;
+	
+	environment = minishell->variables.environment;
+	val = ft_hashmap_remove(environment, (void *)name);
+	if (val != NULL)
+		free(val);
+}
+
 /**
  * @brief Converts the environment variables hashmap to an envp array format.
  *
@@ -105,7 +116,7 @@ void	set_env(
  * environment hashmap and converts them into a NULL-terminated array of
  * strings in the format "KEY=VALUE".
  *
- * @param msh Pointer to the minishell structure containing the environment
+ * @param minishell Pointer to the minishell structure containing the environment
  *            variables hashmap.
  *
  * @return A dynamically allocated array of strings representing environment
@@ -120,17 +131,18 @@ void	set_env(
  *       the NULL terminator.
  */
 char	**get_envp(
-	t_minishell *msh
+	t_minishell *minishell
-) {
+)
+{
 	char		**envp;
 	t_list		*env_list;
 	t_list		*env;
 	t_map_entry	*entry;
 	size_t		i;
 
-	env_list = ft_hashmap_entries(msh->variables.environment);
+	env_list = ft_hashmap_entries(minishell->variables.environment);
 	envp = (char **)malloc(
-			(msh->variables.environment->size + 1) * sizeof(char *)
+			(minishell->variables.environment->size + 1) * sizeof(char *)
 			);
 	if (envp != NULL)
 	{
@@ -149,44 +161,39 @@ char	**get_envp(
 }
 
 /**
- * @brief Frees a dynamically allocated environment variables array
+ * @brief Parses and stores environment variables from envp array into a hashmap
  *
- * This function deallocates memory for an array of strings that was previously
+ * This function iterates through the environment variables array (envp) and
- * allocated by `get_envp()`. It iterates through each string in the array,
+ * splits each variable string on the '=' delimiter to separate the variable
- * frees the memory for individual strings, and then frees the array itself.
+ * name from its value. Each name-value pair is then stored in the minishell's
+ * environment hashmap for later retrieval.
  *
- * @param envp Pointer to the array of environment variable strings to be freed.
+ * @param envp Array of environment variable strings in "NAME=value" format
- *             Each string in the array should be dynamically allocated.
+ * @param minishell  Pointer to the minishell structure containing the environment
- *             The array must be NULL-terminated.
+ *             hashmap
+ *
+ * @note The function assumes envp strings are in the standard format
+ *       "NAME=value"
  */
-void	free_envp(
+void	set_envp(
-	char **envp
+	char **envp,
-) {
+	t_minishell *minishell
-	size_t	i;
+)
+{
+	t_hashmap	**environment;
+	char		**key_value;
 
-	i = -1;
+	if (minishell == NULL || envp == NULL)
-	while (envp[++i] != NULL)
+		return ;
-		free(envp[i]);
+	environment = &minishell->variables.environment;
-	free(envp);
+	*environment = ft_hashmap_new(32, ft_hashmap_hashstr, ft_hashmap_strcmp);
-}
+	if (*environment == NULL)
-
+		return ;
-/**
+	while (*envp != NULL)
- * @brief Retrieves the value of an environment variable from the shell's
+	{
- *        environment hashmap.
+		key_value = ft_split(*envp, '=');
- *
+		set_env(key_value[0], key_value[1], minishell);
- * This function searches for the specified environment variable name in the
+		ft_free_split(key_value);
- * minishell's environment variable hashmap and returns its associated value.
+		envp++;
- *
+	}
- * @param env_name The name of the environment variable to retrieve (e.g.,
- *                 "PATH", "HOME")
- * @param msh      Pointer to the minishell structure containing the environment
- *                 variables hashmap
- *
- * @return The value of the environment variable if found, NULL if not found
- */
-char	*get_env(
-	const char *env_name,
-	t_minishell *msh
-) {
-	return (ft_hashmap_get(msh->variables.environment, env_name));
 }

src/variables/environment_unset.c

@@ -1,41 +0,0 @@
-/* ************************************************************************** */
-/*                                                                            */
-/*                                                        :::      ::::::::   */
-/*   environment_unset.c                                :+:      :+:    :+:   */
-/*                                                    +:+ +:+         +:+     */
-/*   By: sede-san <sede-san@student.42madrid.com    +#+  +:+       +#+        */
-/*                                                +#+#+#+#+#+   +#+           */
-/*   Created: 2026/02/09 22:16:00 by codex             #+#    #+#             */
-/*   Updated: 2026/02/09 22:16:00 by codex            ###   ########.fr       */
-/*                                                                            */
-/* ************************************************************************** */
-
-#include "minishell.h"
-#include "core.h"
-
-void	unset_env(
-	const char *env_name,
-	t_minishell *msh
-){
-	t_hashmap	*new_env;
-	t_list		*entries;
-	t_list		*current;
-	t_map_entry	*entry;
-
-	new_env = ft_hashmap_new(32, ft_hashmap_hashstr, ft_hashmap_strcmp);
-	if (new_env == NULL)
-		return ;
-	entries = ft_hashmap_entries(msh->variables.environment);
-	current = entries;
-	while (current != NULL)
-	{
-		entry = current->content;
-		if (ft_strcmp(entry->key, env_name) != 0)
-			ft_hashmap_put(new_env,
-				ft_strdup(entry->key), ft_strdup(entry->value));
-		current = current->next;
-	}
-	ft_lstclear_nodes(&entries);
-	ft_hashmap_clear(&msh->variables.environment, free);
-	msh->variables.environment = new_env;
-}

src/variables/internal/internal.c

@@ -0,0 +1,120 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   internal.c                                         :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: sede-san <sede-san@student.42madrid.com    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2026/02/13 21:29:43 by sede-san          #+#    #+#             */
+/*   Updated: 2026/02/14 01:39:36 by sede-san         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "minishell.h"
+#include "core.h"
+#include "errors.h"
+
+/**
+ * @brief Retrieves the value of an internal variable by name.
+ * 
+ * @param name      The name of the internal variable to retrieve.
+ * @param minishell Pointer to the minishell structure.
+ * 
+ * @return The value of the internal variable if found, or NULL if not found.
+ */
+char	*get_int(
+	const char *name,
+	t_minishell *minishell
+)
+{
+	return (ft_hashmap_get(minishell->variables.internal, name));
+}
+
+/**
+ * @brief Stores a variable as internal.
+ * 
+ * @param name      The name of the internal variable to set.
+ * @param value     The value to associate with the internal variable.
+ * @param minishell Pointer to the minishell structure.
+ * 
+ * @note If the internal variable already exists, its value will be updated and
+ *       the old value will be freed. If it does not exist, a new internal
+ *       variable will be created.
+ */
+void	set_int(
+	const char *name,
+	char *value,
+	t_minishell *minishell
+)
+{
+	t_hashmap		*internal;
+	char			*key;
+	char			*val;
+	char			*old_val;
+
+	internal = minishell->variables.internal;
+	key = (char *)name;
+	if (key != NULL && !ft_hashmap_contains_key(internal, key))
+	{
+		key = ft_strdup(name);
+		if (key == NULL)
+			return (minishell->exit = true, malloc_error());
+	}
+	val = value;
+	if (val != NULL)
+		val = ft_strdup(value);
+	if (val == NULL)
+	{
+		if (key != name)
+			free(key);
+		return (minishell->exit = true, malloc_error());
+	}
+	old_val = ft_hashmap_put(internal, key, val);
+	if (old_val != NULL)
+		free(old_val);
+}
+
+/**
+ * @brief Removes an internal variable by name.
+ * 
+ * @param name      The name of the internal variable to remove.
+ * @param minishell Pointer to the minishell structure.
+ * 
+ * @note If the internal variable exists, it will be removed from the hashmap
+ *       and its associated value will be freed.
+ */
+void	unset_int(
+	const char *name,
+	t_minishell *minishell
+)
+{
+	char	*value;
+	
+	value = ft_hashmap_remove(minishell->variables.internal, (void *)name);
+	if (value != NULL)
+		free(value);
+}
+
+/**
+ * @brief Initializes the internal variables hashmap with default values.
+ * 
+ * @param minishell Pointer to the minishell structure to initialize.
+ *
+ * @warning This function must be called only once during the initialization of
+ *          the minishell. 
+ */
+void	set_intp(
+	t_minishell *minishell
+)
+{
+	if (minishell == NULL)
+		return ;
+	minishell->variables.internal
+		= ft_hashmap_new(16, ft_hashmap_hashstr, ft_hashmap_strcmp);
+	if (minishell->variables.internal == NULL)
+		return ;
+	set_int("?", "0", minishell);
+	set_int("_", "minishell", minishell);
+	set_int("PS1", DEFAULT_PS1, minishell);
+	set_int("PS2", DEFAULT_PS2, minishell);
+}

src/variables/variables.c

@@ -0,0 +1,50 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   variables.c                                        :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: sede-san <sede-san@student.42madrid.com    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2026/02/13 21:41:44 by sede-san          #+#    #+#             */
+/*   Updated: 2026/02/14 00:52:12 by sede-san         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "variables.h"
+
+/**
+ * @brief Retrieves the value of a variable by name.
+ * 
+ * @param name      The name of the variable to retrieve.
+ * @param minishell Pointer to the minishell structure.
+ * 
+ * @return The value of the variable if found, or NULL if not found.
+ */
+char	*get_var(
+	const char *name,
+	t_minishell *minishell
+)
+{
+	char	*value;
+	
+	value = get_int(name, minishell);
+	if (value == NULL)
+		value = get_env(name, minishell);
+	return (value);
+}
+
+void	set_var(const char *name, char *value, t_minishell *minishell)
+{
+	if (ft_hashmap_contains_key(minishell->variables.internal, name))
+		set_int(name, value, minishell);
+	set_env(name, value, minishell); 
+}
+
+void	unset_var(
+	const char *name,
+	t_minishell *minishell
+)
+{
+	unset_int(name, minishell);
+	unset_env(name, minishell);
+}